CN104749245B - Water-immersion ultrasonic detection method for small-pipe-diameter and large-wall-thickness pipeline equipment - Google Patents
Water-immersion ultrasonic detection method for small-pipe-diameter and large-wall-thickness pipeline equipment Download PDFInfo
- Publication number
- CN104749245B CN104749245B CN201310752701.6A CN201310752701A CN104749245B CN 104749245 B CN104749245 B CN 104749245B CN 201310752701 A CN201310752701 A CN 201310752701A CN 104749245 B CN104749245 B CN 104749245B
- Authority
- CN
- China
- Prior art keywords
- detection
- pipe
- probe
- scanning
- pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention belongs to ultrasonic inspection for the internal surfaces of welding seams of small-pipe-diameter pipelines of a nuclear power station and other pressure-resistant containers and particularly relates to a water-immersion ultrasonic detection method for the small-pipe-diameter and large-wall-thickness pipeline equipment. The water-immersion ultrasonic detection method comprises the following steps of: (1) stretching a detection probe into the pipe to carry out scanning and detection, and carrying out detection and scanning on welding seams of the pipeline; (2) after carrying out detection and scanning on the welding seams, using a quantitative probe to detect the welding seams when detecting the positions of the defected welding seams of the detection pipeline. Compared with the contact type detection method, the water-immersion ultrasonic detection method has the advantages that the inspection of the welding seams of the small-pipe-diameter and large-wall-thickness pipeline can be implemented under the condition that the detection probe does not need to be contacted with the inner surface of the pipeline, the scanning speed is high and the inspection accuracy is high. By application of the method, the detection device can be smaller and lighter, the quantity of the detection probes and corresponding ultrasonic cables is reduced, the weight of the inspection device is reduced and the detection cost and the inspection risk are reduced.
Description
Technical field
The invention belongs to nuclear power station and other pressure resistant vessel small-caliber pipeline weld seam inner surface ultrasound investigations.
Background technology
There is the pipeline section being welded on reactor pressure vessel, because the region is chronically at High Temperature High Pressure in nuclear power station pipeline
State, and have and flowed therethrough with highly radioactive cooling medium, if the region leaks, serious security incident will occur,
Therefore the region must be made regular check on.The pipeline configuration is complicated and special, and caliber is less, and weld seam wall thickness is thicker, using biography
The space that the contact supersonic detection method of system is implemented is very limited and difficult larger.
For example, the big wall thickness pipeline weld seam of pipe with small pipe diameter for caliber scope between 100mm～300mm, conventional contact
Ultrasonic detection method, needs installation multiple angles probe simultaneously to be checked that the size of probe tray component is allowed for together
When multiple probes and cable are installed, in addition it is also necessary to ensure the stationarity during probe scanning, needs are arranged symmetrically probe；In addition,
Also need to install air cylinder device additional on probe tray component, it is ensured that probe tray component is in naturalness when checking tool is installed, and sweeps
Probe tray component is stretched out and is adjacent to inner-walls of duct when looking into state.This for the less pipeline of internal diameter, the development of checking tool,
Install and scanning is more difficult.
The content of the invention
The present invention seeks to propose the immersion type ultrasonic detection method for being specifically designed for the big wall thickness pipeline equipment of pipe with small pipe diameter.
What the present invention was achieved by：
A kind of water logging ultrasonic detection method of the big wall thickness pipeline equipment of pipe with small pipe diameter, wherein, comprise the steps：
Step 1, will detection probe stretch in pipe, detected, for pipe welding seam carries out detection scanning；
Step 2, after detection scanning is carried out for weld seam, the position of defect in pipe welding seam is right using quantitatively popping one's head in
Detection by quantitative is carried out in weld seam.
A kind of water logging ultrasonic detection method of the big wall thickness pipeline equipment of as above pipe with small pipe diameter, wherein, in step 1
In, detection probe positions keep fixing, and scanning process is realized by reflecting mirror；Also, in step 2, used in detection process
The reflecting mirror.
A kind of water logging ultrasonic detection method of the big wall thickness pipeline equipment of as above pipe with small pipe diameter, wherein, the reflection
Mirror mirror design makes incidence parallel with the ultrasonic wave acoustic beam of the diverging of quantitative probe from detection probe into the cylinder of designated curvature
To pipe welding seam, mirror curvature radius calculation formula is as described below：
r=d/(1/2*arcsin(d/(sqrt(R2-2*R*S*cosα+S2)))-1/2*arcsin(R*sinα/(sqrt
(R2-2*R*S*cosα+S2))))
Wherein, sin α/sin β=CW/CL
R-- mirror curvature radiuses；
The half of d-- probe wafer sizes；
R-- pipe welding seam inner surface radiuses；
The angle of incidence of α -- ultrasound wave；
There is the underwater sound journey after direct reflection in S-- sound waves；
Refraction angle of the β-ultrasound wave in pipe welding seam；
CW-- ultrasonic velocity in water；
CL-- ultrasound wave longitudinal wave velocity in pipe welding seam.
A kind of water logging ultrasonic detection method of the big wall thickness pipeline equipment of as above pipe with small pipe diameter, wherein, in step 1
In, detection probe and quantitative probe are stretched in pipe simultaneously；In step 1, using detection probe；In step 2, detection is visited
Head replaces with quantitative probe.
The big wall thickness pipeline weld joint ultrasound detection method of pipe with small pipe diameter that this patent is proposed, compared with traditional detection method：
（1）A kind of immersion type ultrasonic detection method, with respect to contact for, can inspection probe without contact inner surface of pipeline
In the case of, implement the big wall thickness pipeline welding inspection of pipe with small pipe diameter, Scanning speed is fast, checks high precision.Using this kind of method so that
The smaller lighting of detection means, reduces detection probe quantity and corresponding ultrasound cable, alleviates the weight of check device,
Reduce testing cost and inspection risks；（2）Special reflector design so that ultrasonic propagation decay is little, and propagation distance is long；
Special mirror structure so that the ultrasound wave signal to noise ratio of reflection is high；（3）On the premise of without changing probe, pipeline is realized
The scanning of weld seam multiple angles.
Description of the drawings
Fig. 1 is ultrasonic wave acoustic beam propagation path schematic diagram.
The big wall thickness pipeline welding line ultrasonic checking tool probe tray component diagram of Fig. 2 pipe with small pipe diameter.
Fig. 3 mirror curvatures are designed.
Wherein, 1. reflecting mirror, 2. pops one's head in, 3. pipe welding seam, 4. ultrasonic wave acoustic beam, 11. motors, 13. probe holders,
15. rotary cylinders, 16. apparatus main bodies, 17. mirror support seats.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is described further.
As shown in figure 1, in the present embodiment, employ it is a kind of can remote adjustment angle mirror structure as probe support
A part for disk component, ultrasonic wave acoustic beam sends from probe, and through the one section of underwater sound journey mirror structure is reached, and most of sound wave exists
Mirror surface reflects, then enters pipe welding seam through one section of underwater sound journey, is walked by the axial and circumferential on scanning equipment
Stepper motor, can make probe tray component that the water that the big wall thickness pipeline weld seam of pipe with small pipe diameter is realized in axial and circumferential motion is carried out in pipeline
Immersion ultrasound detection.
In this checkout procedure, immersion type ultrasonic detection method Presence of an interface ripple, because of big wall thickness pipeline welding inspection
Depth is deeper, easily produces interference of the boundary wave to ultrasonic signal.Described is tied on acoustic beam propagation path using reflecting mirror
Structure device, by reflection of the reflecting mirror to acoustic beam, moreover it is possible to increase sound wave in water transmission distance, effectively prevent secondary boundary
The interference of face ripple.Meanwhile, the shape of the mirror surface of installation in concave mirror, the ultrasonic wave acoustic beam for making diverging parallel incides pipe
In road weld seam.
In the present embodiment, the wafer size of probe can select suitable size according to wall thickness situation, it is ensured that probe tray
Size of components is not too big and ultrasound wave pipe welding seam wall thickness direction penetration power.In addition, installing below probe gripper
Rotary extension air cylinder device, as change it is different types of pop one's head in realize the detection of pipe with small pipe diameter big wall thickness pipeline weld seam with it is quantitative
Scanning.
The probe tray component of the big wall thickness pipeline welding line ultrasonic checking tool of pipe with small pipe diameter used in the present invention is shown in Fig. 2.
Wherein, the relatively simple adjustable mirror structure of structure is employed, it is only necessary to two ultrasonic cables and 1 control
The cable of the rotation of reflecting mirror 2.Sound wave sends from probe 14, and through the one section of underwater sound journey reflecting mirror 2 is reached, and on the mirror face occurs
Direct reflection, then tested pipe welding seam is incided through one section of underwater sound journey, realize the immersion type ultrasonic examination of pipe welding seam.
Additionally, mirror structure adopts special curved design, as shown in figure 3, mirror mirror is designed to certain curvature
Cylinder make that the ultrasonic wave acoustic beam of diverging is parallel to incide pipe welding seam.Mirror curvature radius is given below for computing formula：
r=d/(1/2*arcsin(d/(sqrt(R2-2*R*S*cosα+S2)))-1/2*arcsin(R*sinα/(sqrt
(R2-2*R*S*cosα+S2))))
Wherein, sin α/sin β=CW/CL
R-- mirror curvature radiuses；
R-- pipe welding seam inner surface radiuses；
The angle of incidence of α -- ultrasound wave；
Refraction angle of the β-ultrasound wave in pipe welding seam；
There is the underwater sound journey after direct reflection in S-- sound waves；
The half of d-- probe wafer sizes；
CW-- ultrasonic velocity in water；
CL-- ultrasound wave longitudinal wave velocity in pipe welding seam.
2 kinds of different type probes are only mounted with described probe tray component, one kind is for detection probe, another kind
Quantitative probe, can realize that multiple angles detect pipe welding seam.After a kind of angle probe detection is completed, by rotary encoder
Make motor 1 clockwise（Or counterclockwise）Rotation, drives reflecting mirror 2 to deflect, and changes ultrasonic wave acoustic beam propagation path many so as to realize
The purpose of angle inspection peace note pipe weld seam.When detection probe completes to detect scanning, when finding recordable defect, rotary cylinder 5 is allowed
Ventilation produces thrust, and probe holder makees 90 ° of rotations counterclockwise, is replaced by the quantitative check that quantitative probe realizes defect.
After the completion of debugging, scanning equipment possesses underwater operation state, and now the deflection angle of reflecting mirror 2 is 45 °, makes ultrasound
Wave sound beam is impinged perpendicularly in pipe welding seam, and scanning equipment first carries out scanning with detection probe.
After the inspection for having implemented to detect probe, controllers export pulse number by adjustment motor, change reflecting mirror
Deflection angle reaches the purpose for changing inspection angle, implements another immersion type ultrasonic examination of inspection probe to pipe welding seam；When
After all detection probe immersion types are verified, it is found that quantitative defect in need shows, now allow rotary cylinder ventilation to produce
Thrust, makes probe holder occur 90 ° and rotates, and is replaced by quantitative probe, again rotating mirror, using quantitative required angle, to lacking
Sunken display carries out quantitative scanning until paced work terminates.
Embodiments of the invention are explained in detail above, above-mentioned embodiment is only most highly preferred embodiment of the invention,
But the present invention is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, can with
Various changes can be made on the premise of without departing from present inventive concept.
Claims (2)
1. the water logging ultrasonic detection method of the big wall thickness pipeline equipment of a kind of pipe with small pipe diameter, it is characterised in that comprise the steps：
Step 1, will detection probe stretch in pipe, detection is scanned, for the weld seam of pipeline carries out detection scanning；
Step 2, after detection scanning is carried out for weld seam, in the detection defective detecting location of pipe welding seam, using quantitative spy
Head is detected for weld seam；
In step 1, detect probe positions to keep fixing, scanning process is realized by reflecting mirror；Also, in step 2, in detection
During use the reflecting mirror；
The mirror mirror is designed to the cylinder of designated curvature and makes the ultrasound wave of the diverging from detection probe and quantitative probe
Acoustic beam is parallel to incide pipe welding seam, and mirror curvature radius calculation formula is as described below：
R=d/ (1/2*arcsin (d/ (sqrt (R2-2*R*S*cosα+S2)))-1/2*arcsin(R*sinα/(sqrt(R2-2*
R*S*cosα+S2))))
Wherein, sin α/sin β=CW/CL
R-- mirror curvature radiuses；
The half of d-- probe wafer sizes；
R-- pipe welding seam inner surface radiuses；
The angle of incidence of α -- ultrasound wave；
There is the underwater sound journey after direct reflection in S-- sound waves；
Refraction angle of the β-ultrasound wave in pipe welding seam；
CW-- ultrasonic velocity in water；
CL-- ultrasound wave longitudinal wave velocity in pipe welding seam.
2. the water logging ultrasonic detection method of the big wall thickness pipeline equipment of pipe with small pipe diameter as claimed in claim 1, it is characterised in that
In step 1, detection probe and quantitative probe are stretched in pipe simultaneously；In step 1, using detection probe；In step 2, will
Detection probe replaces with quantitative probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310752701.6A CN104749245B (en) | 2013-12-31 | 2013-12-31 | Water-immersion ultrasonic detection method for small-pipe-diameter and large-wall-thickness pipeline equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310752701.6A CN104749245B (en) | 2013-12-31 | 2013-12-31 | Water-immersion ultrasonic detection method for small-pipe-diameter and large-wall-thickness pipeline equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104749245A CN104749245A (en) | 2015-07-01 |
| CN104749245B true CN104749245B (en) | 2017-04-26 |
Family
ID=53589240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310752701.6A Active CN104749245B (en) | 2013-12-31 | 2013-12-31 | Water-immersion ultrasonic detection method for small-pipe-diameter and large-wall-thickness pipeline equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104749245B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108722998A (en) * | 2018-04-20 | 2018-11-02 | 武汉大学深圳研究院 | A kind of ultrasonic dredger of pipeline fixed point and method |
| CN112014466A (en) * | 2019-05-30 | 2020-12-01 | 上海汽车变速器有限公司 | Ultrasonic flaw detection method for shaft shoulder outer inclined plane of tooth shaft welding part welding seam |
| CN110824010A (en) * | 2019-11-22 | 2020-02-21 | 中国石油大学(华东) | Pipeline coating ultrasonic internal detector |
| CN112304923A (en) * | 2020-10-22 | 2021-02-02 | 岭澳核电有限公司 | Concrete pipeline inner wall detecting system |
| CN115575498A (en) * | 2022-10-09 | 2023-01-06 | 哈尔滨工业大学 | Ultrasonic online detection method for weld defects of aircraft tire welding ring core |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4821575A (en) * | 1986-10-06 | 1989-04-18 | Nippon Steel Corporation | Ultrasonic flaw detecting method and apparatus |
| US5583292A (en) * | 1991-03-23 | 1996-12-10 | Krautkramer Gmbh & Co. | Ultrasonic measuring process for the wall thickness curve of a weld seam of a pipe |
| CN1828219A (en) * | 2006-04-06 | 2006-09-06 | 上海交通大学 | Intelligent detector for submarine pipeline |
| CN101504391A (en) * | 2009-03-11 | 2009-08-12 | 湖南省湘电锅炉压力容器检验中心有限公司 | Root defect detection method for thick-wall large-diameter pipe butt weld |
| CN201526807U (en) * | 2009-10-28 | 2010-07-14 | 沈阳工业大学 | Drainage pipeline detection device with single probe and reflecting mirror |
| CN102735615A (en) * | 2011-04-08 | 2012-10-17 | 中国科学院光电研究院 | Laser ultrasonic detection device |
-
2013
- 2013-12-31 CN CN201310752701.6A patent/CN104749245B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4821575A (en) * | 1986-10-06 | 1989-04-18 | Nippon Steel Corporation | Ultrasonic flaw detecting method and apparatus |
| US5583292A (en) * | 1991-03-23 | 1996-12-10 | Krautkramer Gmbh & Co. | Ultrasonic measuring process for the wall thickness curve of a weld seam of a pipe |
| CN1828219A (en) * | 2006-04-06 | 2006-09-06 | 上海交通大学 | Intelligent detector for submarine pipeline |
| CN101504391A (en) * | 2009-03-11 | 2009-08-12 | 湖南省湘电锅炉压力容器检验中心有限公司 | Root defect detection method for thick-wall large-diameter pipe butt weld |
| CN201526807U (en) * | 2009-10-28 | 2010-07-14 | 沈阳工业大学 | Drainage pipeline detection device with single probe and reflecting mirror |
| CN102735615A (en) * | 2011-04-08 | 2012-10-17 | 中国科学院光电研究院 | Laser ultrasonic detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104749245A (en) | 2015-07-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104749245B (en) | Water-immersion ultrasonic detection method for small-pipe-diameter and large-wall-thickness pipeline equipment | |
| US5767410A (en) | Lamb wave ultrasonic probe for crack detection and measurement in thin-walled tubing | |
| CN104698088B (en) | Pressure pipeline TOFD detection methods and device based on ultrasonic phase array | |
| US7656997B1 (en) | Method and apparatus for automated, digital, radiographic inspection of piping | |
| CN101710102B (en) | Ultrasonic detection method of variable-wall thick-walled pipe | |
| CN108562647B (en) | PA-TOFD combined ultrasonic detection device and method for polyethylene pipeline hot-melt butt joint | |
| CN104515807A (en) | Pressure pipeline ultrasonic internal detection automation device | |
| CN101192458A (en) | Pressure vessels top cover actuating device lower omega welding seam ultrasonic inspection method and device | |
| EP3259587B1 (en) | Method for inspecting a weld seam with ultrasonic phased array | |
| CN104374825B (en) | Gas storage well ultrasonic phase array automatic detection device and detection method | |
| CN105043312A (en) | Spherical densely-covered type probe ultrasonic thickness measurement device used for detection in pressure pipeline | |
| CN102537669A (en) | Pipeline defect detection method and system based on ultrasonic guided wave focusing | |
| CN204214815U (en) | The ultrasonic interior detection automation equipment of a kind of pressure pipeline | |
| CN104749257B (en) | Ultrasonic wave angle adjustment device in water seaoning ultrasound detection | |
| CN109725059A (en) | A kind of method of ultrasonic Doppler non-destructive testing inner wall of the pipe corrosion default | |
| KR101372828B1 (en) | Ultrasonic inspection device for purforming non-destructive test | |
| CN203732507U (en) | Ultrasonic angle adjustment device for water immersion method ultrasonic testing | |
| CN204495776U (en) | Based on the pressure pipeline TOFD pick-up unit of ultrasonic phase array | |
| US5377237A (en) | Method of inspecting repaired stub tubes in boiling water nuclear reactors | |
| JP6039599B2 (en) | Tube ultrasonic inspection equipment | |
| CN202152923U (en) | Pipeline defect detection system based on ultrasonic guided wave focusing | |
| CN105065140A (en) | Solid rocket engine interface I detection system and method thereof | |
| CN1042778A (en) | The method of detecting welding seam of articles by ultrasonic | |
| KR100768390B1 (en) | Heat exchanger tube inspection device using guided ultrasonic wave | |
| JP2000352563A (en) | Ultrasonic flaw detector for cladding tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |